The New York Yankees newest pitcher addition J.A. Happ reported Tuesday to Yankees stadium and told trainer Steve Donahue of blisters on his hands who then told Brian Cashman about Happ’s concern. He was then sent to a local hospital in the afternoon and was later diagnosed with hand, foot and mouth disease. According to general manager Brian Cashman, the disease is mild.

This disease is generally diagnosed in kids younger than five and it is not clear how did Happ contract that. The only logical guess made by Yankees was that he might have gotten it while traveling from Toronto to New York.

“He doesn’t have any idea and there’s a lot of speculation, but I don’t think you guys are going to get any answers,” Cashman said. “He flew commercially from the Midwest to here, so I don’t know if it’s possible that something on the way happened. No one is going to really have an answer to it other than just guessing.”

According to the Centers for Disease Control and Prevention, hand, foot and mouth disease spreads when people come in contact with an infected person’s blister fluid or when the person who has it coughs or sneeze. The symptoms of the hand, foot and mouth disease include fever, mouth sores, and a skin rash.

“I can only convey to you what our internist who evaluated Happ conveyed to me,” Cashman told reporters. “He feels currently this is a mild case, but he’ll stay connected.

“We’ll be in a better position [Wednesday] to evaluate whether this is towards the tail end of this thing or if it’s ramping up.”

It is not confirmed that he will be sent to the disabled list or not yet, but the Yankees will monitor his recovery in coming days. He is scheduled to start against Red Sox at Fenway Park on Saturday, but in case the disease gets severe the Yankees have a back up in shape of Lance Lynn, who was traded last Monday from Minnesota Twins.

“If everything is as it is now, he probably would be able to go on Saturday. But it’s to be determined,” Cashman said. “So, we’re taking all the necessary precautions.”

One on the New York Mets pitcher Noah Syndergaard also recently contracted the hand, foot and mouth disease, who has been on DL since July 22nd and is expected to return on Wednesday. Syndergaard was working at a kid’s camp during his All-Star break and Mets believe that he must have contracted the hand, foot and mouth disease from there. The day after the camp Syndergaard pitched five innings against Yankees in Yankees Stadium. His pitching velocity went noticeably down later in the game and he reported of feeling blisters on his hands and then was diagnosed with the hand, foot and mouth disease.

To keep the other Yankees from getting the same disease the team has added more hand sanitizers all around the clubhouse.

Happ has debuted with Yankees in their Sunday’s game against Kansas City Royals. Where Happ threw six innings of three-hit ball in a win over the opponent.